package com.fafa.config;


import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/*
拦截器
* */
public class LoginHandlerInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object user = request.getSession().getAttribute("user");
        //登陆成功
        if(user == null){
            request.setAttribute("msg","没有权限请先登录！");
            request.getRequestDispatcher("/login.html").forward(request,response);
            return false;
        }
        return true;
    }
}
